ramrom

RAM/ROM Card

The latest revision of the RAM/ROM card contains up to 64KB of RAM and 32KB of ROM. The mapping of RAM versus ROM can be controlled in software using a single 8-bit register.

v1.0

• First custom PCB with support for 64KB RAM + 32KB ROM.
• Shadowing BANK1 is optional. Those ICs can be omitted.

v0.1

• Initial hand-wired version with only 32KB RAM and 32KB ROM.

Videos

Video covering the high-level design, pld developent, ordering, assembly and test of the v1.0 card:

Thanks

Thanks to PCBWay for supporting this build.